Acute Effects of Ethanol on Motor Performance and Movement-Related Brain Potentials
- 1 March 1988
- journal article
- clinical trial
- Published by The Haworth Press in Advances in Alcohol & Substance Abuse
- Vol. 7 (3-4) , 53-57
- https://doi.org/10.1300/j251v07n03_09
Abstract
The acute effects of ethanol on skilled motor functions were examined in male social drinkers, under four doses ranging from 0 (placebo) to 1.05 g/kg lean body weight. The movement entailed a forewarned choice transitive motion of the arm and hand, aimed at a flanking target. Performance measures disclosed only small effects of ethanol on speed and accuracy of movement. The simultaneously-recorded movement-related brain potentials disclosed decreased involvement of frontal and posterior brain areas, suggesting that ethanol disrupted the planning and regulation of movement despite the overall preservation of reaction speed.Keywords
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